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Finding the Fourth Proportional to 294,651.20, 406,621.49 and 167,327.71

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Solution

The fourth proportional to 294,651.20, 406,621.49 and 167,327.71 is: 230,913.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,651.20 : 406,621.49 = 167,327.71 : x
  2. Step 2: Convert to fraction form
    294,651.20/406,621.49 = 167,327.71/x
  3. Step 3: Cross multiply
    294,651.20x = 406,621.49 × 167,327.71
  4. Step 4: Simplify right side
    294,651.20x = 68,039,042,758.49
  5. Step 5: Solve for x
    x = 68,039,042,758.49/294,651.20
  6. Step 6: Final answer
    x = 230,913.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.